On Thu, Jan 7, 2016 at 11:52 AM, Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx> wrote: > On Wed, Jan 06, 2016 at 06:46:37AM +0000, Wang, Annie wrote: >> Acpi_dma_xlate mainly converts an acpi_dma structure into a dma_chan structure. >> Without proper request line, wrong acpi_dma structure may be get. >> >> And as Andy says in http://article.gmane.org/gmane.linux.kernel.iommu/11675 >> How about add a hook into acpi_dma_controller_register? > > Hmm, you can pass custom data in acpi_dma_controller_register() which > will be assigned to adma->data. If you put your request line > information there, I think your custom acpi_dma_xlate() should be able > to use that information to find proper channel, no? I like Mika's idea, so, please, go this way if there is no impediment. -- With Best Regards, Andy Shevchenko -- To unsubscribe from this list: send the line "unsubscribe dmaengine" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
